A multi-storey building full assembly wallboard system and its construction method

Abstract

This invention discloses a multi-story fully prefabricated wall panel system and its construction method, comprising several shear wall panels forming a building unit and composite slabs that cooperate with the top of the shear wall panels, as well as prefabricated balconies that cooperate with the building unit. The main building structure also includes prefabricated stairs for movement within the building units on different floors. Wall panel connection nodes are provided between adjacent shear wall panels, and composite slab connection nodes without reinforcement are provided between adjacent composite slabs. Balcony connection nodes are provided between the prefabricated balconies and adjacent shear wall panels and composite slabs. Staircase connection nodes are provided within the building unit to cooperate with the stairs. Compared to ALC wall panels and concrete wall panels, this system has higher waterproofing performance, and the mortar-anchored lap joint provides structural self-waterproofing. Furthermore, compared to ALC wall panels, this system uses concrete shear wall panels, improving living comfort and durability.

Description

Technical Field

[0001] This invention relates to the field of prefabricated building technology, and in particular to a fully prefabricated wall panel system for multi-story buildings and its construction method. Background Technology

[0002] To promote prefabricated buildings, there is an urgent need for a prefabricated construction system that is compatible with self-built houses on rural homesteads.

[0003] Currently, there are two mainstream prefabricated construction systems for rural homestead housing projects. One is a frame system mainly composed of precast concrete beams, columns, and slabs, with lightweight partition walls such as ALC used for interior and exterior walls. The other is a shear wall system mainly composed of precast concrete wall panels and fully precast floor slabs, with steel connectors used for bolted connections between the wall panels, supplemented by high-strength mortar or sealant to fill the joints. The first system is convenient to construct and has a lower cost, but because it uses lightweight ALC partition walls for the exterior cladding, it has a higher risk of water seepage, and its sound insulation and durability are not as good as the red brick walls widely used in rural areas. The second system is also convenient to construct, but because the wall panels are all made of concrete, the cost is higher, and the bolted connections at the wall panel joints do not provide self-waterproofing. Although tongue-and-groove waterproofing and weather-resistant sealants are used as auxiliary waterproofing methods, the durability of weather-resistant sealants is poor, and in areas with high temperature and humidity, the waterproofing effect is inevitably not as good as that of wet connection methods. Therefore, a wall panel assembly system that is more suitable for prefabricated construction of self-built houses in rural areas is needed. Summary of the Invention

[0004] In order to overcome the shortcomings of the prior art, the technical problem to be solved by the present invention is to propose a multi-story building fully prefabricated wall panel system and its construction method, so as to improve the prefabrication rate of prefabricated buildings for rural self-built houses and improve the comfort and durability of the buildings.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] This invention provides a multi-story prefabricated wall panel system, comprising several shear wall panels forming building units and composite slabs that cooperate with the top of the shear wall panels. Several building units vertically form the main building structure. The system also includes prefabricated balconies that cooperate with the building units. Prefabricated staircases for movement within different building units are also provided within the main building structure. Wall panel connection nodes are provided between adjacent shear wall panels, and these connection nodes include flat joints, corner joints, and vertical joints. Composite slabs without reinforcing bars are provided between adjacent composite slabs. Balcony connection nodes are provided between the prefabricated balconies and adjacent shear wall panels and composite slabs. Two prefabricated staircases are provided, staggered in height, and corresponding staircase connection nodes are provided within each building unit.

[0007] When two shear wall panels are spliced, the flat joint includes two shear wall panels and flat joint reinforcement. Several flat joint steel wire ropes are evenly arranged vertically at the assembly ends of the two shear wall panels. The free ends of the flat joint steel wire ropes exposed after bending are in the shape of rope loops, and the other end is anchored inside the shear wall panel. The free ends of the flat joint steel wire ropes of the two shear wall panels are staggered vertically. During assembly, the flat joint reinforcement is inserted into the rope loops of the free ends of the flat joint steel wire ropes of the two mating shear wall panels.

[0008] When two shear wall panels are vertically joined, the corner joint includes two shear wall panels and corner reinforcement bars. One of the shear wall panels has several corner reinforcement steel wire ropes evenly arranged vertically at its assembly end. The free ends of the corner reinforcement steel wire ropes, after being bent, are in the form of rope loops, and the other end is anchored inside the shear wall panel. The other shear wall panel has several open stirrups on its side that cooperate with the free ends of the corner reinforcement steel wire ropes. The free ends of the open stirrups and the free ends of the corner reinforcement steel wire ropes are staggered vertically, and the other end is anchored inside the shear wall panel. During assembly, the corner reinforcement bars are inserted into the staggered rope loops of the free ends of the corner reinforcement steel wire ropes and the open stirrups.

[0009] As the building unit continues to be constructed layer by layer, the shear wall panels need to be vertically connected. The vertical connection includes two shear wall panels. Several corrugated pipes are evenly embedded near the bottom of the shear wall panels. The insertion port of the corrugated pipe leads to the bottom of the shear wall panel, and the injection port of the corrugated pipe extends to the side of the shear wall panel. A vertical connecting bar that cooperates with the corrugated pipe is also embedded near the top of the shear wall panel. During assembly, the protruding end of the vertical connecting bar is inserted into the corrugated pipe of the adjacent shear wall panel, and grout is injected into the corrugated pipe from the injection port. Preferably, the composite plate is inserted between two adjacent vertically connected wall panels. When the protruding end of the vertical connecting bar is inserted into the corrugated pipe of the adjacent shear wall panel, the protruding end of the vertical connecting bar penetrates the composite plate. Grouting sealant is provided in the gap between the composite plate and the shear wall panel.

[0010] At the joint of the composite slab, the joint without reinforcement includes an edge support joint, an intermediate support joint, and a close-fitting joint. The edge support joint is the fit between the edge support and the composite slab. The intermediate support joint is the fit between two adjacent composite slabs and the support. The close-fitting joint is the fit between two adjacent composite slabs. Additional reinforcement is provided at the joint of the composite slab joint.

[0011] At the balcony connection point, the balcony connection node includes a balcony composite slab and a balcony support that cooperate with the prefabricated balcony. One end of the prefabricated balcony and the balcony composite slab is fixed to the balcony support in a stepped manner. It also includes additional top reinforcement and additional distribution reinforcement. One end of the additional top reinforcement is hooked and overlaps with the top reinforcement of the prefabricated balcony. The other end is tied to the additional distribution reinforcement. The other end of the additional distribution reinforcement is tied to the balcony composite slab.

[0012] At the staircase connection, the staircase connection node includes a top beam and a middle beam. Matching welded steel plates are pre-embedded in the shear wall panels at both ends of the top beam and the middle beam. The top beam mates with the staircase composite slab at the top of the building unit. The middle beam is located between the top and bottom of the building unit. One end of one prefabricated staircase is supported on the top beam, and the other end is supported on the middle beam. One end of another prefabricated staircase is supported on the middle beam, and the other end is supported at the bottom of the building unit. The middle beam forms a transition platform at the support points of the two prefabricated staircases. The prefabricated staircases have pin holes at both ends near the top beam and the middle beam. Staircase reinforcing bars that mate with the pin holes are fixed on the top beam and the middle beam. During assembly, the staircase reinforcing bars are inserted into the pin holes.

[0013] A construction method for a multi-story building fully prefabricated wall panel system, used for the construction of the aforementioned wall panel system, includes the following steps: S00: Shear wall panels arrive on site. After arrival, the dimensions of the shear wall panels must be verified, corrugated pipes must be positioned, and vertical, horizontal, and corner reinforcement bars must be positioned. After the shear wall panels are installed in place, grouting is carried out. The composite slab can only be hoisted after the grouting strength reaches the required level; S10: After the composite slabs arrive on site, the dimensions of the composite slabs need to be verified. At the same time, additional reinforcement bars, additional top reinforcement bars, and additional distribution reinforcement bars should be prepared according to the design requirements. It should also be noted that due to the connection between the composite slabs and the ladder beam supports, the welding of the top beam and intermediate beams should be completed in advance before hoisting the composite slabs; the prefabricated balconies can be hoisted after the composite slabs are installed in place; S20: After the prefabricated balconies arrive, the external dimensions need to be verified, and hoisting can only be carried out after the composite slabs are hoisted to ensure the normal construction of the composite slabs at the balcony junction. After the precast balcony is installed in place, additional top reinforcement and additional distribution reinforcement are tied, and subsequent electromechanical installation is carried out simultaneously. After all work is completed, the slab surface can be poured. S30: After the slab surface is poured, the top beam and intermediate beam form an effective connection with the shear wall panel, providing a stable working condition for the installation of the precast staircase. Before hoisting the staircase, staircase inserts need to be welded at the corresponding steel beam positions in the pin holes. At the same time, mortar is applied to the contact position between the staircase and the steel beam for leveling. After the precast staircase is installed in place, the pin holes are grouted. S40: Continue the installation of the next floor's main structure. After the main structure is completed, the joint positions need to be treated according to the nodes. PE rods are placed in the joints of the floor slab and wall panel during component installation. In step S00, when connecting vertically adjacent shear wall panels, the on-site construction should reserve the length of the vertical splice in advance according to the shear wall panel installation requirements to insert the corrugated pipe.

[0014] The beneficial effects of this invention are as follows:

[0015] (1) This case solves the problem of poor comfort and durability caused by the use of lightweight partition walls in the exterior walls of traditional frame systems. Compared with ALC wall panels, concrete wall panels have a higher waterproof effect. Compared with bolted connections, grout anchor lap joints have a self-waterproofing function, ensuring the waterproof performance of the building in long-term use. Moreover, compared with ALC wall panels, this system uses concrete shear wall panels, which can effectively reduce sound wave propagation and improve living comfort and durability.

[0016] (2) Based on the characteristics of prefabricated buildings in rural houses, this scheme can also avoid the problem that wall columns need to be supported by formwork and cast in place when the shear wall system of high-rise residential buildings is constructed using prefabricated construction, further improving the prefabrication rate of buildings and reducing carbon emissions, so as to better suit the needs of rural buildings. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the composition of a multi-story building fully assembled wall panel system provided in a specific embodiment of the present invention;

[0018] Figure 2 This is a schematic diagram of the top view of two shear wall panels joined together in a specific embodiment of the present invention.

[0019] Figure 3 yes Figure 2 Elevation principle diagram of AA;

[0020] Figure 4 yes Figure 2 Elevation principle diagram of BB;

[0021] Figure 5 This is a top-view schematic diagram of the corner joint of two shear wall panels provided in a specific embodiment of the present invention.

[0022] Figure 6 yes Figure 5 Elevation schematic diagram of the CC (Construction Center);

[0023] Figure 7 yes Figure 5 Elevation principle diagram of dd;

[0024] Figure 8 This is a schematic diagram of the fit between the side support and the composite plate at the side support node provided in a specific embodiment of the present invention;

[0025] Figure 9 This is a schematic diagram of the cooperation structure between two adjacent composite plates and the support at the intermediate support node provided in a specific embodiment of the present invention.

[0026] Figure 10 This is a schematic diagram of the mating structure between two adjacent laminated plates at a close-fitting node provided in a specific embodiment of the present invention;

[0027] Figure 11 This is a schematic diagram of the mating structure of the balcony connection node provided in a specific embodiment of the present invention;

[0028] Figure 12 This is a schematic diagram of the combined structure of additional ribs and additional distribution ribs at the balcony connection node provided in a specific embodiment of the present invention.

[0029] Figure 13 This is a schematic diagram of the assembly of a prefabricated staircase provided in a specific embodiment of the present invention;

[0030] Figure 14 This is a schematic diagram of the cooperation structure between the welded steel plates in the top beam and staircase composite slab and the two adjacent shear wall panels provided in a specific embodiment of the present invention;

[0031] Figure 15 This is a side schematic diagram of the structure of the top beam and the staircase composite slab provided in a specific embodiment of the present invention;

[0032] Figure 16 This is a schematic diagram of the cooperation structure between the intermediate beam and the welded steel plates in the two adjacent shear wall panels provided in a specific embodiment of the present invention;

[0033] Figure 17 This is a detailed installation drawing of the prefabricated staircase at the top beam provided in a specific embodiment of the present invention;

[0034] Figure 18 This is a detailed installation drawing of the prefabricated staircase at the intermediate beam provided in a specific embodiment of the present invention;

[0035] Figure 19 yes Figure 4 Enlarged diagram of A in the middle;

[0036] In the picture:

[0037] 1. Building unit; 11. Shear wall panel; 12. Composite slab; 10. Main building structure; 13. Precast balcony; 14. Precast staircase;

[0038] 2. Wall panel connection nodes; 21. Butt joint; 22. Corner joint; 23. Vertical joint;

[0039] 211. Flat joint reinforcement; 212. Flat joint wire rope;

[0040] 221. Corner joint reinforcement; 222. Corner joint wire rope; 223. Open stirrup;

[0041] 231. Corrugated pipe; 232. Vertical joint;

[0042] 3. Connection nodes of composite slabs without reinforcement; 31. Edge support nodes; 32. Intermediate support nodes; 33. Close-fitting nodes; 34. Additional reinforcement;

[0043] 4. Balcony connection node; 41. Balcony composite slab; 42. Balcony support; 43. Additional top reinforcement; 44. Additional distribution reinforcement;

[0044] 5. Staircase connection nodes; 51. Top beam; 52. Intermediate beam; 53. Welded steel plate; 54. Staircase composite slab; 55. Transfer platform; 56. Pin hole; 57. Staircase reinforcing bar;

[0045] 6. PE rods. Detailed Implementation

[0046] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0047] like Figure 1As shown, this invention provides a multi-story fully prefabricated wall panel system, including several shear wall panels 11 forming a building unit 1 and composite slabs 12 that cooperate with the top of the shear wall panels 11. The shear wall panels 11 are concrete wall panels. Several building units 1 form a building body 10 in the vertical direction. It also includes prefabricated balconies 13 that cooperate with the building units 1. The building body 10 is also equipped with prefabricated staircases 14 for movement within different building units 1. Furthermore, wall panel connection nodes 2 are provided between adjacent shear wall panels 11. The wall panel connection nodes 2 include a flat joint 21, a corner joint 22, and a vertical joint 23 according to the connection method. Specifically, when two shear wall panels 11 are connected horizontally, that is, the straight sections of the two shear wall panels 11 are spliced ​​together, such as... Figure 2 and Figure 4 As shown, the flat joint 21 includes two shear wall panels 11 and flat joint reinforcement 211. Several flat joint steel wire ropes 212 are evenly arranged vertically at the assembly ends of the two shear wall panels 11. The free ends of the flat joint steel wire ropes 212, after bending, are exposed and form loops, while the other end is anchored inside the shear wall panel 11. The free ends of the flat joint steel wire ropes 212 of the two shear wall panels 11 are staggered vertically to avoid mutual interference. To facilitate subsequent grouting, grooves sloping to both sides can be provided at the mating ends of the two shear wall panels 11 to accommodate the flat joint steel wire ropes 212. During assembly, the flat joint reinforcement 211 is inserted into the loops of the free ends of the flat joint steel wire ropes 212 of the two mating shear wall panels 11. Finally, fine stone concrete is poured into the cavity formed by the grooves of the two shear wall panels 11, enabling the two shear wall panels 11 to transmit horizontal forces. PE rods 6 are installed along the vertical seam on the outdoor side to facilitate the application of weather-resistant sealant later and enhance the waterproof effect of the seam;

[0048] When two shear wall panels 11 are connected at a vertical angle, i.e., at an angle, the end face of one shear wall panel 11 is connected to the side face of the other shear wall panel 11, such as... Figure 5 and Figure 7As shown, the corner joint 22 includes two shear wall panels 11 and corner reinforcement bars 221. One shear wall panel 11 has several corner reinforcement wire ropes 222 evenly arranged vertically at its assembly end. The free ends of the bent corner reinforcement wire ropes 222 are loop-shaped, and the other end is anchored inside the shear wall panel 11. The other shear wall panel 11 has several open stirrups 223 on its side that cooperate with the free ends of the corner reinforcement wire ropes 222. The free ends of the open stirrups 223 are connected to... The free ends of the angle-joint steel wire ropes 222 are staggered in the vertical direction, and the other end is anchored in the shear wall panel 11. The end of the shear wall panel 11 can also be provided with grooves on both sides to facilitate subsequent grouting. During assembly, the angle-joint reinforcement 221 is inserted into the rope loops and open stirrups 223 of the staggered angle-joint steel wire ropes 222. Then, fine stone concrete is poured into the cavity formed by the two shear wall panels 11 so that the two shear wall panels 11 can transmit horizontal forces.

[0049] After the construction of the first-floor building unit 1 is completed, when continuing to build upwards, the two shear wall panels 11 will need to be vertically connected, such as... Figure 3 and Figure 6 As shown, the vertical joint 23 includes two shear wall panels 11. Several corrugated pipes 231 are evenly embedded near the bottom of each shear wall panel 11. The insertion ports of the corrugated pipes 231 lead to the bottom of the shear wall panel 11, and the grouting ports of the corrugated pipes 231 extend towards the side of the shear wall panel 11. Vertical connecting ribs 232 that cooperate with the corrugated pipes 231 are also embedded near the top of each shear wall panel 11. During assembly, the protruding ends of the vertical connecting ribs 232 are inserted into the corrugated pipes 231 of the adjacent shear wall panel 11, and grout is injected into the corrugated pipes 231 through the grouting ports. During vertical connection, a composite plate 12 is inserted between two adjacent wall panels. When the protruding ends of the vertical connecting ribs 232 are inserted into the corrugated pipes 231 of the adjacent shear wall panel 11, the protruding ends of the vertical connecting ribs 232 penetrate the composite plate 12. A gap is provided between the composite plate 12 and the shear wall panel 11. Grouting sealing material; both shear wall panels 11 are prefabricated with vertical steel bars to ensure strength. When vertically connected, the two shear wall panels 11 are spliced ​​together vertically. During assembly, the protruding end of the vertical joint bar 232 is inserted into the corrugated pipe 231 of the adjacent shear wall panel 11. If the length of the vertical joint bar 232 is insufficient, the vertical joint bar 232 can be lengthened using a straight threaded sleeve joint. At the same time, the total cross-sectional area of ​​the vertical joint bar 232 is greater than the total cross-sectional area of ​​the longitudinal steel bars of the reinforced concrete wall to meet the necessity of vertical load transfer between upper and lower floors. Grouting sealing material is used to seal the bottom of the upper shear wall panel 11 around the perimeter, so that the bottom of the shear wall panel 11 forms a closed grouting cavity. Grouting material is injected from the injection port to fill the grouting cavity. In this way, the vertical joint bar 232 and the corrugated pipe 231 are connected vertically to the two shear wall panels 11 under the action of the grouting material.

[0050] In summary, based on the connection structure of the shear wall panel 11, the main steps of the construction process for the vertically connected shear wall panel 11 are as follows:

[0051] ① Before hoisting, check the position of the pre-embedded vertical reinforcement 232 and the corrugated pipe 231, and extend the vertical reinforcement 232 by using a straight threaded sleeve to ensure that the error is within the allowable range. Place leveling shims at appropriate intervals at the installation position of the shear wall panel 11 to adjust the elevation of the shear wall panel 11 from the structural surface.

[0052] ② The shear wall panel 11 is vertically positioned, the vertical joint 232 extends into the corrugated pipe 231, and the flat joint 211 of this layer is placed in the overlapping area of ​​the flat joint wire rope 212; the corner joint 221 of this layer is placed in the overlapping area of ​​the corner joint wire rope 222 and the open stirrup 223.

[0053] ③Use grouting material to seal the bottom of the shear wall panel 11 to form a closed cavity. After the sealing material reaches the required strength, inject the grouting material through the grouting port of the corrugated pipe 231.

[0054] Utilizing the deformable and recoverable characteristics of the flat-joint steel wire rope 212 and the corner-joint steel wire rope 222, after the shear wall panel 11 is vertically lowered into place, the vertical joint 232 replaces the longitudinal steel bars in the shear wall panel 11 with equal strength, and the longitudinal load between the layers is transferred by the grout anchor connection. The load between the shear wall panels 11 is transferred to the flat-joint steel wire rope 212 and the corner-joint steel wire rope 222 through the bonding effect between the dowel bars and the concrete, thus realizing the horizontal load transfer between the two shear wall panels 11.

[0055] Furthermore, such as Figures 8-10As shown, a non-reinforced joint connection node 3 is provided between two adjacent composite slabs 12. Specifically, the non-reinforced joint connection node 3 includes an edge support node 31, an intermediate support node 32, and a close-fitting node 33. The edge support node 31 is the fit between the edge support and the composite slab 12, that is, the edge support node 31 is the case when one end of the composite slab 12 is fitted with a single support (i.e., a single shear wall panel 11), which is generally the case for external walls. The intermediate support node 32 is the fit between two adjacent composite slabs 12 and the support, that is, the intermediate support node 32 is the case when one end of two composite slabs 12 is fitted with a single support (i.e., a single shear wall panel 11). This situation generally occurs at the junction of the building interior and the shear wall panel 11; the close-fitting node 33 is the junction between two adjacent composite slabs 12, that is, the close-fitting node 33 is the case when two composite slabs 12 are joined together. This situation generally occurs at the junction of two composite slabs 12 inside the building; additional steel bars 34 are set at the junction of the composite slabs 12. In order to ensure the integrity and waterproof performance of the building, the floor slab abandons the fully precast floor slab and adopts the composite floor slab method. The bottom slab is precast and the composite layer is cast in place. The composite slab does not have reinforcement. The connection node 3 refers to the "Technical Specification for Application of Reinforced Truss Concrete Composite Slab" T / CECS 715-2020 issued by the China Association for Engineering Construction Standardization; by adding additional steel bars 34 at the junction of the edge support and the middle support with the floor slab and at the junction of two adjacent composite slabs 12, the force transmission performance of the bottom reinforcement of the composite slab 12 is ensured, while avoiding construction quality problems caused by the collision between the bottom reinforcement and the support reinforcement on site. It also reduces the production mold cost of precast components.

[0056] When setting up a balcony, such as Figure 11 and Figure 12 As shown, a balcony connection node 4 is provided between the precast balcony 13 and the adjacent shear wall panel 11 and composite slab 12. The balcony connection node 4 includes a balcony composite slab 41 and a balcony support 42 that cooperate with the precast balcony 13. One end of the precast balcony 13 and the balcony composite slab 41 is fixed to the balcony support 42 in a stepped manner. It also includes additional reinforcement 43 and additional distribution reinforcement 44. One end of the additional reinforcement 43 is hooked and overlaps with the reinforcement of the precast balcony 13. The other end is tied to the additional distribution reinforcement 44. The other end of the additional distribution reinforcement 44 is tied to the balcony composite slab 41. In this way, the balcony adopts a separate design, separating the balcony reinforcement into additional reinforcement 43 and additional distribution reinforcement 44. During construction, the reinforcement of the balcony support 42 can avoid collision with the reinforcement of the precast balcony 13 when it is in place, thus solving the problem of the precast balcony 13 being difficult to place.

[0057] When installing stairs, such as Figures 13-17As shown, the prefabricated staircase 14 includes two staircases, which are staggered in height. A staircase connection node 5 is provided within the building unit 1 to match the staircases. The staircase connection node 5 includes a top beam 51 and a middle beam 52. Matching welded steel plates 53 are pre-embedded in the shear wall panels 11 at both ends of the top beam 51 and the middle beam 52. The top beam 51 matches the staircase composite slab 54 at the top of the building unit 1. The middle beam 52 is located between the top and bottom of the building unit 1. One end of one prefabricated staircase 14 is built on the top beam 51, and the other end is built on the middle beam 52. The other prefabricated staircase... One end of the prefabricated staircase 14 is built on the intermediate beam 52, and the other end is built at the bottom of the building unit 1. The intermediate beam 52 forms a transition platform 55 at the support of the two prefabricated staircases 14. The prefabricated staircases 14 have pin holes 56 at both ends near the top beam 51 and the intermediate beam 52. Staircase reinforcing bars 57 that cooperate with the pin holes 56 are fixed on the top beam 51 and the intermediate beam 52. During assembly, the staircase reinforcing bars 57 are inserted into the pin holes 56. Thus, by pre-embedding and welding steel plates 53 in the shear wall panel 11 that cooperates with the prefabricated staircases 14, the top beam 51 and the intermediate beam 52 are connected to the pre-embedded steel plates 53 by welding. One end of the precast staircase 14 rests on the top beam 51, and the other end rests on the intermediate beam 52. The contact area is leveled with cement mortar beforehand. The staircase inserts 57 welded on the top beam 51 and the intermediate beam 52 are inserted into the pin holes 56 at both ends of the precast staircase 14. Finally, grout is injected into the pin holes 56 to connect the precast staircase 14 with the top beam 51 and the intermediate beam 52. The gaps between the precast staircase 14 and the top beam 51 and the intermediate beam 52 are filled with filler material, and after placing the PE rod 6, modified silicone sealant is applied evenly. Angle steel is also welded to the side of the top beam 51 to form a staggered platform. One end is used as a support for the precast staircase 14, and the other end is used as a support for the composite slab.

[0058] A construction method for a multi-story building fully prefabricated wall panel system, used for the construction of the aforementioned wall panel system, includes the following steps: S00: Shear wall panel 11 arrives on site. After arrival, the dimensions of shear wall panel 11 are verified, corrugated pipe 231 is positioned, and vertical joints 232, horizontal joints 211, and corner joints 221 are positioned. After the shear wall panel 11 is installed in place, grouting is performed. The composite slab 12 can only be hoisted after the grouting strength meets the requirements; S10: After the composite slab 12 arrives, the dimensions of the composite slab 12 need to be verified. In addition, according to the design requirements, additional reinforcing bars 34, additional top bars 43, and additional distribution bars 44 should be prepared. It should also be noted that due to the connection between the composite slab 12 and the ladder beam support, the welding of the top beam 51 and the intermediate beam 52 should be completed before hoisting the composite slab 12. The precast balcony 13 can be hoisted after the composite slab 12 is installed in place. S20: The dimensions of the precast balcony 13 need to be checked after it arrives on site, and it can only be hoisted after the composite slab 12 is hoisted to ensure the integrity of the composite slab 13 at the balcony junction. 2. During normal construction, after the precast balcony 13 is installed in place, the additional top reinforcement 43 and additional distribution reinforcement 44 are tied, and the subsequent electromechanical installation is carried out simultaneously. After all the work is completed, the slab surface can be poured. S30: After the slab surface is poured, the top beam 51 and the intermediate beam 52 form an effective connection with the shear wall panel 11, providing a stable working condition for the installation of the precast staircase 14. Before hoisting the staircase, the staircase dowel bars 57 need to be welded to the corresponding steel beam positions in the dowel holes 56, and at the same time, the staircase and the steel... Apply mortar to the contact area of ​​the beam to level it. After the precast staircase 14 is installed in place, grout the pin hole 56. S40: Continue the installation of the next floor main structure. After the main structure is completed, the joint position needs to be treated according to the node. The joint of the floor slab and the wall panel is inserted with PE rod 6 during component installation. Preferably, in step S00, when connecting the vertically adjacent shear wall panels 11, the on-site construction should reserve the length of the vertical reinforcement 232 in advance according to the installation requirements of the shear wall panel 11 to insert the corrugated pipe 231.

[0059] This invention has been described through preferred embodiments. Those skilled in the art will understand that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of the invention. This invention is not limited to the specific embodiments disclosed herein; other embodiments falling within the scope of the claims are also within the protection scope of this invention.

Claims

1. A multi-storey building fully assembled wall panel system characterised in that: The shear wall plate (11) comprises several building units (1), and the superimposed plate (12) is matched with the top of the shear wall plate (11); several layers of the building units (1) form a building body (10) in the vertical direction; the prefabricated balcony (13) is matched with the building unit (1); and the prefabricated staircase (14) is arranged in the building unit (1) and is used for moving in different layers of the building unit (1); The wall plate connecting joint (2) is arranged between two adjacent shear wall plates (11), and the wall plate connecting joint (2) comprises a flat joint part (21), a corner joint part (22) and a vertical joint part (23) according to the connection mode; the superimposed plate non-bar connecting joint (3) is arranged between two adjacent superimposed plates (12); the balcony connecting joint (4) is arranged between the prefabricated balcony (13) and the adjacent shear wall plate (11) and superimposed plate (12); the prefabricated staircase (14) comprises two parts, the two prefabricated staircases (14) are arranged in a staggered manner, and the staircase connecting joint (5) is arranged in the building unit (1) and is matched with the staircase; The flat joint part (21) comprises two shear wall plates (11) and a flat joint bar (211), the assembly end of each of the two shear wall plates (11) is uniformly provided with a plurality of flat joint steel wire ropes (212) in the vertical direction, the free end of the flat joint steel wire rope (212) exposed outside after being bent is in the form of a rope sleeve, the other end is anchored in the shear wall plate (11), and the free ends of the flat joint steel wire ropes (212) of the two shear wall plates (11) are arranged in a staggered manner in the vertical direction; during assembly, the flat joint bar (211) is inserted into the rope sleeves of the free ends of the flat joint steel wire ropes (212) of the two matched shear wall plates (11).

2. The multi-storey building full assembly wall plate system according to claim 1, characterized in that: The corner joint part (22) comprises two shear wall plates (11) and a corner joint bar (221), one assembly end of the shear wall plates (11) is uniformly provided with a plurality of corner joint steel wire ropes (222) in the vertical direction, and the free end of the corner joint steel wire rope (222) exposed outside after being bent is in the form of a rope sleeve, and the other end is anchored in the shear wall plate (11); The other shear wall plate (11) is provided with a plurality of open stirrups (223) matched with the free ends of the corner joint steel wire ropes (222) on the side surface, the free ends of the open stirrups (223) and the free ends of the corner joint steel wire ropes (222) are arranged in a staggered manner in the vertical direction, and the other ends are anchored in the shear wall plate (11); during assembly, the corner joint bar (221) is inserted into the free end rope sleeves of the corner joint steel wire ropes (222) and the open stirrups (223) arranged in a staggered manner.

3. The multi-storey building full assembly wall plate system according to claim 1, characterized in that: The vertical connecting part (23) comprises two shear wall plates (11), which are uniformly embedded with corrugated pipes (231) near the bottom, the insertion interfaces of the corrugated pipes (231) lead to the bottom of the shear wall plates (11), and the pouring interfaces of the corrugated pipes (231) extend to the side of the shear wall plates (11); the shear wall plates (11) are further embedded with vertical connecting bars (232) matched with the corrugated pipes (231) near the top, and when assembled, the extending ends of the vertical connecting bars (232) are inserted into the corrugated pipes (231) of adjacent shear wall plates (11), and then grouting is performed from the pouring interfaces into the corrugated pipes (231).

4. The multi-storey building full-assembly wall plate system according to claim 3, characterized in that: The laminated plate (12) is inserted between two adjacent wall plates connected vertically, when the extending ends of the vertical connecting bars (232) are inserted into the corrugated pipes (231) of adjacent shear wall plates (11), the extending ends of the vertical connecting bars (232) penetrate through the laminated plate (12), and grouting sealing material is arranged in the gap between the laminated plate (12) and the shear wall plate (11).

5. The multi-storey building full-assembly wall plate system according to claim 1, characterized in that: The non-reinforced connecting node (3) of the laminated plate comprises an edge support node (31), an intermediate support node (32) and a close-splicing node (33), the edge support node (31) is the cooperation between the edge support and the laminated plate (12), the intermediate support node (32) is the cooperation between the adjacent two laminated plates (12) and the support, and the close-splicing node (33) is the cooperation between the adjacent two laminated plates (12), and additional reinforcement (34) is arranged at the splicing position of the laminated plate (12) connecting point.

6. The multi-storey building full-assembly wall plate system according to claim 1, characterized in that: The balcony connecting node (4) comprises a balcony laminated plate (41) matched with a prefabricated balcony (13) and a balcony support (42), one end of the prefabricated balcony (13) and the balcony laminated plate (41) is fixed on the balcony support (42) in a stepped manner; it further comprises additional surface reinforcement (43) and additional distribution reinforcement (44), one end of the additional surface reinforcement (43) is hook-shaped and overlapped with the surface reinforcement of the prefabricated balcony (13), the other end is tied with the additional distribution reinforcement (44), and the other end of the additional distribution reinforcement (44) is tied with the balcony laminated plate (41).

7. The multi-storey building full-assembly wall plate system according to claim 6, characterized in that: The stair connecting node (5) comprises a top beam (51) and an intermediate beam (52), a shear wall plate (11) at both ends of the top beam (51) and the intermediate beam (52) is embedded with a matched welded steel plate (53), the top beam (51) is matched with a stair superimposed plate (54) at the top of the building unit (1), the intermediate beam (52) is arranged between the top and the bottom of the building unit (1), one end of one prefabricated stair (14) is built on the top beam (51), the other end is built on the intermediate beam (52), one end of the other prefabricated stair (14) is built on the intermediate beam (52), and the other end is built on the bottom of the building unit (1), and the intermediate beam (52) supports the two prefabricated stairs (14) to form a transfer platform (55) at the support positions of the two prefabricated stairs (14); The prefabricated stair (14) is provided with a bolt hole (56) at both ends close to the top beam (51) and the intermediate beam (52), and the top beam (51) and the intermediate beam (52) are fixedly provided with stair inserting ribs (57) matched with the bolt hole (56), and when assembled, the stair inserting ribs (57) are inserted into the bolt hole (56).

8. A construction method of a multi-storey building fully assembled wall panel system, for the construction of a multi-storey building fully assembled wall panel system according to any one of claims 1 to 7, characterized in that: The method comprises the following steps: S00: The shear wall plate (11) is brought in, after being brought in, the size of the shear wall plate (11) is checked, the corrugated pipe (231) is positioned, the vertical connecting rib (232), the horizontal connecting rib (211) and the corner connecting rib (221) are positioned, after the shear wall plate (11) is installed in place, grouting construction is carried out, after the grouting strength reaches the requirement, the superimposed plate (12) is hoisted; S10: After the superimposed plate (12) is brought in, the size of the superimposed plate (12) needs to be checked, and additional steel bars (34), additional surface bars (43) and additional distribution bars (44) are prepared according to the design requirement; at the same time, attention should be paid to the connection of the superimposed plate (12) and the ladder beam support, and the top beam (51) and the intermediate beam (52) should be welded and constructed in advance before the superimposed plate (12) is hoisted; after the superimposed plate (12) is installed in place, the prefabricated balcony (13) is hoisted; S20: After the prefabricated balcony (13) is brought in, the size of the prefabricated balcony (13) needs to be checked, and the prefabricated balcony (13) is hoisted after the superimposed plate (12) is hoisted, so as to ensure the normal construction of the superimposed plate (12) at the balcony joint position; after the prefabricated balcony (13) is installed in place, the additional surface bars (43) and the additional distribution bars (44) are bound, and subsequent mechanical and electrical installation is carried out; after all the work is completed, the plate surface is poured; S30: After the plate surface is poured, the top beam (51) and the intermediate beam (52) are effectively connected with the shear wall plate (11), and stable working conditions are provided for the installation of the prefabricated stair (14); before the stair is hoisted, the stair inserting rib (57) is welded at the position corresponding to the steel beam of the bolt hole (56), and the mortar is smeared to level the position where the stair contacts the steel beam; after the prefabricated stair (14) is installed in place, the bolt hole (56) is grouted; S40: Continue to install the main body of the next layer, after the main body is completed, the joint position needs to be treated according to the node, and the joint of the floor slab and the wall plate is put into the PE rod (6) during the installation of the component.

9. The construction method of a multi-layer building full-fabricated wall panel system according to claim 8, characterized in that: In step S00, when connecting the vertically adjacent shear wall panels (11), the field construction needs to pre-reserve the length of the vertical connecting bars (232) according to the installation requirements of the shear wall panels (11) to insert the corrugated pipes (231).

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